A low-complexity time-domain MMSE channel estimator for space-time/frequency block-coded OFDM systems

Keyphrases

• Orthogonal Frequency Division multiplexing System 100%
• Minimum Mean Square Error 100%
• Error Channel 100%
• Coherent Optical Orthogonal Frequency Division multiplexing (CO-OFDM) 100%
• Space-time-frequency 100%
• Channel Estimator 100%
• Channel Estimation 66%
• Orthogonal Frequency Division multiplexing 66%
• Karhunen-Loève 66%
• Closed-form Expression 66%
• Minimum Mean Square Error Estimator 66%
• Analytical Results 33%
• Estimation Algorithms 33%
• Computational Efficiency 33%
• Estimation Approaches 33%
• Linear Minimum Mean Square Error (LMMSE) 33%
• Response-adapted 33%
• Space-frequency 33%
• Transmit Diversity 33%
• Multiplex Transmission 33%
• Fast Fading 33%
• Orthogonal Expansion 33%
• Karhunen-Loève Expansion 33%
• Time-domain Channel Estimation 33%
• Expansion Coefficient 33%
• Pilot-scale System 33%
• Computational Load 33%
• Estimator Performance 33%
• Matrix Inversion 33%
• Error Rate Probabilities 33%
• Rank Reduction 33%
• Optimal Rank 33%
• Maximum Ratio 33%
• Combiner 33%
• Wireless Fading Channels 33%
• Transmitter Diversity 33%
• Average Symbol Error Rate 33%
• Systems-based 33%
• Frequency Selective Channel 33%
• Channel Modeling 33%
• Cramér-Rao Lower Bound 33%
• Channel Impulse Response 33%

Engineering

• Time Domain 100%
• Mean Square Error 100%
• Orthogonal Frequency Division Multiplexing 100%
• Channel Estimation 40%
• Closed Form Expression 40%
• Simulation Result 20%
• Error Estimate 20%
• Analytical Result 20%
• Frequency-Selective Channel 20%
• Expansion Coefficient 20%
• Error Estimator 20%
• Channel Impulse Response 20%
• Channel Modeling 20%
• Fading Channel 20%
• Symbol Error Rate 20%
• Computational Load 20%
• Receive Combiner 20%
• Computer Simulation 20%

Computer Science

• Time Complexity 100%
• Orthogonal Frequency Division Multiplexing 100%
• channel estimate 100%
• Estimation Algorithm 40%
• closed-form expression 40%
• Channel Estimation 40%
• Fading Channel 20%
• Symbol Error Rate 20%
• Transmit Diversity 20%
• Computational Load 20%
• Orthogonal Expansion 20%
• crame rao low bound 20%
• Channel Modeling 20%
• Expansion Coefficient 20%
• Error Estimate 20%
• Channel Impulse Response 20%
• Computational Simulation 20%